Richard Hansen

USDA-APHIS-PPQ-CPHST
Fort Collins Lab
2301 Research Blvd
Suite 108
Fort Collins, CO
USA 80526
Email: richard.w.hansen@aphis.usda.gov

Papers:
1067 Utilization of native thistles (Cirsium spp.) by the Canada thistle rust mite, Aceria anthocoptes